It is normal and expected link in editable areas to be not operational. The edible area is intended to be edited. If a link is to be clicked (and page to be redirected) the iframe's window will change its location and this user will lose all the content inside the editor.
In this Dojo (http://dojo.telerik.com/oKUzU
) you can see that this behavior is dictated by the browser. This is how editable DOM elements are designed to act and this is the commonly expected behavior when it comes to editing links in an editable area.
There are no plans to address this behavior and change it as this the expected user experience.
As Iliana suggested, you can use the native browser context menu
(right click on the link) and select Open link in new tab
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